金属学报, 2003, 39(8): 843-847. doi: 10.3321/j.issn:0412-1961.2003.08.013
不同类型过载下Ⅰ型疲劳裂纹的扩展行为
王章忠 1, , 杜百平 2, , 李年 3, {"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"用锥形量热仪的方法研究了不同阻燃剂含量的饰面型防火涂料点燃时间、热释放速率、有效释放热及总烟气释放量等项目,结果表明:随着阻燃剂含量的增加,热释放速率、有效释放热等参数随之降低;此外,在市面上选取3种饰面型防火涂料,用大板法和锥形量热仪法进行了研究,结果表明:随着耐火极限的延长,有效释放热、热释放速率等参数数值明显减小,同理论分析一致.","authors":[{"authorName":"邓小波","id":"5c7e81c5-b4ed-40db-81d2-401b4eadfdb2","originalAuthorName":"邓小波"},{"authorName":"王继刚","id":"04f0acb1-5f9b-4117-b2f2-01592de68c71","originalAuthorName":"王继刚"},{"authorName":"刘白玲","id":"30aad924-a5aa-45c9-b41c-2260b34a4479","originalAuthorName":"刘白玲"}],"doi":"10.3969/j.issn.0253-4312.2011.12.012","fpage":"50","id":"0640aabf-2b14-4ed1-8b5c-ae01a81c4843","issue":"12","journal":{"abbrevTitle":"TLGY","coverImgSrc":"journal/img/cover/TLGY.jpg","id":"61","issnPpub":"0253-4312","publisherId":"TLGY","title":"涂料工业 "},"keywords":[{"id":"d39356be-8b2a-408e-b897-ddc91359829d","keyword":"饰面型防火涂料","originalKeyword":"饰面型防火涂料"},{"id":"a5764ca7-ba10-4989-a624-4f95d8fd63be","keyword":"锥形量热仪","originalKeyword":"锥形量热仪"},{"id":"d6cfb0a4-a9be-44c0-b57d-c42889b8a6e0","keyword":"耐火极限","originalKeyword":"耐火极限"}],"language":"zh","publisherId":"tlgy201112012","title":"锥形量热仪在饰面型防火涂料防火性能研究中的应用","volume":"41","year":"2011"},{"abstractinfo":"文中综述了核壳结构材料的特点,如能提高材料的稳定性、包裹功能性核以及制备功能性栽体等,并详细论述了核壳结构制备方法(如乳液聚合、包裹技术和自组装等)的原理、优缺点及改进方法和发展前景.","authors":[{"authorName":"曹顺生","id":"cc356838-e356-4cc7-9e39-43022936ef5f","originalAuthorName":"曹顺生"},{"authorName":"刘白玲","id":"29f1193d-f2e9-4c50-b30d-918535665677","originalAuthorName":"刘白玲"},{"authorName":"邓小波","id":"cb7b39bf-a2aa-49f7-9004-61516b9c4fb0","originalAuthorName":"邓小波"}],"doi":"","fpage":"36","id":"713ae97a-8f2c-463d-bcff-e0f056398c6b","issue":"8","journal":{"abbrevTitle":"GFZCLKXYGC","coverImgSrc":"journal/img/cover/GFZCLKXYGC.jpg","id":"31","issnPpub":"1000-7555","publisherId":"GFZCLKXYGC","title":"高分子材料科学与工程"},"keywords":[{"id":"4c629f10-199c-45c8-930f-a5d574e9987d","keyword":"核壳结构","originalKeyword":"核壳结构"},{"id":"4927faf2-c311-411b-a032-f80f76c3da14","keyword":"共聚物","originalKeyword":"共聚物"},{"id":"069a992b-b2d6-4e5a-a953-e11f95f4c4ef","keyword":"合成方法","originalKeyword":"合成方法"}],"language":"zh","publisherId":"gfzclkxygc200808009","title":"核壳结构复合材料合成技术述评","volume":"24","year":"2008"},{"abstractinfo":"针对传统脊线提取算法不能同时兼顾速度和精度的问题,提出了一种新的基于“图像”分割的小波脊线提取算法.对渐近性信号进行连续小波变换以后,模值较大的小波系数往往集中在时间-尺度平面上几个分散的区域,将小波系数模值矩阵看作一个“图像”,对其分割,再对分割得到的每个区域确定其极值位置可得到小波脊线.仿真实验表明:算法不仅较传统脊线算法在精度和效率都有所提高,在信号去噪和信号分离中也表现良好.","authors":[{"authorName":"陈蕴谷","id":"bbbf3c27-8170-4736-8bb8-853326755b21","originalAuthorName":"陈蕴谷"},{"authorName":"苏本跃","id":"950b9d83-eb1f-487d-b7ab-c88e121252e1","originalAuthorName":"苏本跃"}],"doi":"10.3969/j.issn.1007-5461.2012.06.002","fpage":"665","id":"1ca45734-522c-4b15-baab-16acb2adfa29","issue":"6","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"a14c5b67-0482-463e-8a52-d6a4a5e1f162","keyword":"图像与信息处理","originalKeyword":"图像与信息处理"},{"id":"4c84e267-3cfd-43dc-9404-6a54a3217fd4","keyword":"图像分割","originalKeyword":"图像分割"},{"id":"e7417805-b670-4e00-915b-da4c4662ce59","keyword":"脊提取","originalKeyword":"脊提取"},{"id":"2b6ab370-d348-47a1-84f9-57363617d4fe","keyword":"信号去噪","originalKeyword":"信号去噪"},{"id":"a4ec0b22-bc76-4158-be40-f528d2bdc415","keyword":"信号分离","originalKeyword":"信号分离"}],"language":"zh","publisherId":"lzdzxb201206002","title":"基于“图像”分割的小波脊线提取算法","volume":"29","year":"2012"},{"abstractinfo":"通过量子力学变换理论,结合有序算符内的积分技术,用于信号分析的小波变换可推广到增光子相干态的非经典量子特性研究中.结果表明,增光子相干态的小波变换谱除具有一般小波变换的特性外,而且随着增光子数的逐渐增大,其对称性被破坏,不断有新的波峰出现.","authors":[{"authorName":"任刚","id":"cf72ae09-8670-4e00-9555-d2890aab1421","originalAuthorName":"任刚"},{"authorName":"杜建明","id":"83fbbb1c-1a6a-4677-897e-81f99c8bd055","originalAuthorName":"杜建明"},{"authorName":"余海军","id":"c1ce9034-ce8c-4fd4-a196-cc25b2e2450c","originalAuthorName":"余海军"},{"authorName":"范洪义","id":"04637fdd-ccf7-490f-a279-e47a61270928","originalAuthorName":"范洪义"}],"doi":"10.3969/j.issn.1007-5461.2015.05.008","fpage":"563","id":"f113fe48-d53d-4a5a-8ac6-de26acf52098","issue":"5","journal":{"abbrevTitle":"LZ","coverImgSrc":"journal/img/cover/LZ.jpg","id":"52","issnPpub":"1005-4006","publisherId":"LZ","title":"连铸"},"keywords":[{"id":"de1dd008-42d8-42ea-b768-eb138524e797","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"cd7c16b3-e980-474a-a400-cb082d6b448d","keyword":"小波变换","originalKeyword":"小波变换"},{"id":"d04a3dce-3419-4a79-bad9-7e750e7dafb2","keyword":"增光子相干态","originalKeyword":"增光子相干态"},{"id":"fbaac1aa-d67f-48ac-94e7-9a9f29a96a39","keyword":"有序算符内积分技术","originalKeyword":"有序算符内积分技术"}],"language":"zh","publisherId":"lzdzxb201505008","title":"增光子相干态的小波变换","volume":"32","year":"2015"},{"abstractinfo":"本文针对发动机尾喷焰的目标红外特性开展谱分析研究.采用热流法求解辐射传输方程,获得尾喷焰表观红外辐射特性仿真数据,应用多尺度小波分解红外光谱获得小波压缩系数.考察了不同小波函数及小波尺度下红外特性光谱的压缩效果.研究结果表明,基于小波的尾喷焰红外辐射特性光谱数据压缩方法是可行的,尾喷焰红外光谱主要信息基本保留,变量维数压缩可达10倍以上.","authors":[{"authorName":"王雁鸣","id":"5351e244-f933-4aa7-bfc0-261992eecc30","originalAuthorName":"王雁鸣"},{"authorName":"谈和平","id":"ff43bcc8-dae4-44e5-95e4-ca2b80bb3f51","originalAuthorName":"谈和平"},{"authorName":"帅永","id":"31c7aa8f-3aa4-42a4-92bf-22fd16d769da","originalAuthorName":"帅永"},{"authorName":"张昊春","id":"5e580d65-191c-42ee-aec4-9ef316b99d15","originalAuthorName":"张昊春"}],"doi":"","fpage":"127","id":"1b89e5e4-fa8d-459a-bd27-491f93272d14","issue":"1","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"3205997f-8c98-48a0-bae6-897c3deea8aa","keyword":"尾喷焰","originalKeyword":"尾喷焰"},{"id":"84c8a3c7-0fe1-4d7f-b83a-e5c0f55edee1","keyword":"红外特性","originalKeyword":"红外特性"},{"id":"d025b62b-1b4d-4746-997f-28e77a337a64","keyword":"数据压缩","originalKeyword":"数据压缩"},{"id":"b235819b-c0e6-4f29-b774-4a4a7fce67ba","keyword":"小波变换","originalKeyword":"小波变换"}],"language":"zh","publisherId":"gcrwlxb200801039","title":"尾喷焰红外辐射特性的小波压缩","volume":"29","year":"2008"},{"abstractinfo":"动态自适应多尺度小波配点法(AWCM)能有效地模拟具有间歇性的物理现象,此方法是近几年发展起来的非常新颖的数值计算方法.为了增强该方法识别与跟踪解的奇异性的能力,并提高数值计算稳定性与计算效率,将精细时程积分算法与之相结合形成了快速动态自适应多尺度小波配点法.为了实现这一算法,给出了构造动态自适应网格配点集的新方法,构建了以小波(或尺度函数)系数为变量的时程推进公式.通过求解一维Burgers方程,证明了方法具有更加良好的数值计算性质.","authors":[{"authorName":"张文华","id":"64c6d138-dcb1-4aa6-acd1-1712ade02ad8","originalAuthorName":"张文华"},{"authorName":"宇波","id":"18d388a6-9e98-4d1d-a554-018d9de7e65f","originalAuthorName":"宇波"}],"doi":"","fpage":"2694","id":"644efc7f-92de-4ae9-8a14-1a72aefa6110","issue":"12","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"3f6db5ac-7558-4ed8-a346-4bf09d65ee9c","keyword":"小波","originalKeyword":"小波"},{"id":"ea52b845-8837-445a-b162-66b1dfd4ca44","keyword":"动态自适应网格","originalKeyword":"动态自适应网格"},{"id":"b08bb670-3fc7-4f55-85ee-f396caa3bbd8","keyword":"精细时程积分","originalKeyword":"精细时程积分"},{"id":"0afb3bbf-502b-4cf3-84fe-9729fa0d913f","keyword":"间歇性","originalKeyword":"间歇性"}],"language":"zh","publisherId":"gcrwlxb201512033","title":"快速动态自适应小波配点法","volume":"36","year":"2015"},{"abstractinfo":"利用区间B样条小波良好的局部化性能,将内聚力模型(CZM)引入小波有限元法(WFEM)数值分析中,以区间B样条小波尺度函数作为插值函数,构造小波内聚力界面单元,推导了小波内聚力界面单元刚度矩阵,基于虚拟裂纹闭合技术(VCCT)计算界面裂纹应变能释放率(SERR),采用β-Κ断裂准则,实现界面裂纹扩展准静态分析。将 WFEM和传统有限元法(CFEM)的 SERR 数值分析结果与理论解进行比较,结果表明:采用WFEM和CFEM计算的SERR分别为96.60 J/m2和101.43 J/m2,2种方法的SERR数值解与理论解相对误差分别为1.85%和3.06%,这明确表明WFEM在计算界面裂纹扩展方面能用较少单元和节点数获得较高的计算精度和效率。在此基础上,探讨了界面裂纹初始长度和双材料弹性模量比对界面裂纹扩展的影响,分析结果表明:界面裂纹尖端等效应力随界面裂纹初始长度的增加而增加;双材料弹性模量比相差越大,界面裂纹越易于扩展,且裂纹扩展长度也越大,因此可通过调节双材料弹性模量比来延缓界面裂纹扩展。","authors":[{"authorName":"彭惠芬","id":"fe5d6718-396a-4cbe-8f54-98d9d3bf24c3","originalAuthorName":"彭惠芬"},{"authorName":"夏晔","id":"f85420d4-96a7-48ab-8f74-8b470c3f9764","originalAuthorName":"夏晔"},{"authorName":"周立明","id":"069181b7-0558-4359-805a-7385faf0ea61","originalAuthorName":"周立明"}],"doi":"10.13801/j.cnki.fhclxb.20160315.012","fpage":"1830","id":"3f9993a9-566f-4702-845a-e660f7574252","issue":"8","journal":{"abbrevTitle":"FHCLXB","coverImgSrc":"journal/img/cover/FHCLXB.jpg","id":"26","issnPpub":"1000-3851","publisherId":"FHCLXB","title":"复合材料学报"},"keywords":[{"id":"3de36c03-9a10-4ac1-8ec4-555012c05376","keyword":"内聚力模型","originalKeyword":"内聚力模型"},{"id":"84ecd026-4ada-4501-ada1-c4438a2f7816","keyword":"小波有限元","originalKeyword":"小波有限元"},{"id":"7c892d45-0c87-4458-af63-be7390bd98be","keyword":"界面裂纹扩展","originalKeyword":"界面裂纹扩展"},{"id":"1119efe6-c3f0-43b9-a473-b013da50b2a0","keyword":"虚拟裂纹闭合技术","originalKeyword":"虚拟裂纹闭合技术"},{"id":"8a986aa8-2dca-454e-8f94-f2535d9f9888","keyword":"应变能释放率","originalKeyword":"应变能释放率"}],"language":"zh","publisherId":"fhclxb201608030","title":"基于小波内聚力模型的界面裂纹扩展","volume":"33","year":"2016"},{"abstractinfo":"针对常规的压力AGC系统存在的问题,利用小波变换的多尺度分析具有很好的时域和频域局部化的特性,开发了一种基于自适应小波阀值法的AGC系统.新系统根据轧制力的变化和轧辊的转速自适应地确定小波分解的层次和各层的阀值,提取压力AGC调节需要的轧制力变化量和辨识轧辊的偏心信号进行轧辊偏心的高精度补偿,具有自适应性、鲁棒性强,算法简单,控制精度高的特点.实验表明,这种系统使板带的厚度精度大为提高,具有广阔的推广应用前景.","authors":[{"authorName":"李勇","id":"28166756-57d0-442d-963d-ae3fb6715c4b","originalAuthorName":"李勇"},{"authorName":"王君","id":"36b0918a-7af2-45b8-ad53-6cb29168b265","originalAuthorName":"王君"},{"authorName":"胡贤磊","id":"e38c1db4-a0c6-4935-a631-329b1a533379","originalAuthorName":"胡贤磊"},{"authorName":"刘相华","id":"b4e90dc7-3ccc-4c85-862c-7091bd6e8c26","originalAuthorName":"刘相华"}],"doi":"","fpage":"39","id":"432de3b1-f1f6-4036-b8bf-50d0d37dd833","issue":"1","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"31952993-bfe4-4e7c-9d63-798c667e43ab","keyword":"自适应","originalKeyword":"自适应"},{"id":"9df14f53-824d-4226-b5f2-edc5c93738ee","keyword":"小波阀值法","originalKeyword":"小波阀值法"},{"id":"822c0af7-c77e-4f6f-b5cc-403e01cff112","keyword":"AGC","originalKeyword":"AGC"},{"id":"482bffc0-267a-4a16-83ef-ec0d4b04f2c5","keyword":"偏心补偿","originalKeyword":"偏心补偿"},{"id":"176e1447-1168-4fcf-a53e-a6aa772227fd","keyword":"厚度偏差","originalKeyword":"厚度偏差"}],"language":"zh","publisherId":"gt200701010","title":"基于自适应小波阀值法的AGC系统","volume":"42","year":"2007"},{"abstractinfo":"针对常规的压力AGC系统存在的问题,利用小波变换的多尺度分析具有很好的时域和频域局部化的特性,开发了一种基于自适应小波阀值法的AGC系统。新系统根据轧制力的变化和轧辊的转速自适应地确定小波分解的层次和各层的阀值,提取压力AGC调节需要的轧制力变化量和辨识轧辊的偏心信号进行轧辊偏心的高精度补偿,具有自适应性、鲁棒性强,算法简单,控制精度高的特点。实验表明,这种系统使板带的厚度精度大为提高,具有广阔的推广应用前景。","authors":[{"authorName":"李勇","id":"864d91ad-a1fc-4fd3-9a7b-8dd2a5649ad7","originalAuthorName":"李勇"},{"authorName":"王君","id":"8d9eb40d-667c-469f-b35e-896dfb25e011","originalAuthorName":"王君"},{"authorName":"胡贤磊","id":"2dcf4ad1-d676-44f3-89a1-31dfbf7123af","originalAuthorName":"胡贤磊"},{"authorName":"刘相华","id":"01cc4347-4a30-42a9-af7a-c4844db7743b","originalAuthorName":"刘相华"}],"categoryName":"|","doi":"","fpage":"39","id":"87b33de4-96f7-4d14-9016-41ff1c36bf0d","issue":"1","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"8ba1bb20-6a4b-412e-8280-589060f0255e","keyword":"自适应;小波阀值法;AGC;偏心补偿;厚度偏差","originalKeyword":"自适应;小波阀值法;AGC;偏心补偿;厚度偏差"}],"language":"zh","publisherId":"0449-749X_2007_1_2","title":"基于自适应小波阀值法的AGC系统","volume":"42","year":"2007"},{"abstractinfo":"提出一种基于小波变换的多尺度结构相似度的图像质量评价(WWMS-SSIM)算法。首先对原始图像和失真图像分别进行小波变换,在对应的低频子带图像中比较亮度和相关度差异,在对应高频子带图像中比较对比度、相关度和结构差异,然后赋予不同子带图像不同的视觉加权值,最后得到归一化的图像质量评价值。通过对不同失真类型图像以及Live 数据库图像的评价,证明了提出的算法(WWMS-SSIM)相对均方误差、峰值信噪比、结构相似度以及改进的结构相似度评价算法更符合人类的主观视觉感受。","authors":[{"authorName":"钱方","id":"2305cc0f-9951-43d2-b9b9-18c2d9754bb2","originalAuthorName":"钱方"},{"authorName":"孙涛","id":"c251ef12-39c5-4525-88df-7886f4f21748","originalAuthorName":"孙涛"},{"authorName":"郭劲","id":"12e3fd10-ca3f-461c-92cf-c8dacc3a7dd4","originalAuthorName":"郭劲"},{"authorName":"王挺峰","id":"95b174fa-f6ff-4807-9788-6767b4c48880","originalAuthorName":"王挺峰"}],"doi":"10.3788/YJYXS20153002.0317","fpage":"317","id":"c518a76e-4039-4818-b0b4-3aded71de90a","issue":"2","journal":{"abbrevTitle":"YJYXS","coverImgSrc":"journal/img/cover/YJYXS.jpg","id":"72","issnPpub":"1007-2780","publisherId":"YJYXS","title":"液晶与显示 "},"keywords":[{"id":"454fb493-ecfd-4916-9da2-0ce80136ee49","keyword":"人类视觉系统","originalKeyword":"人类视觉系统"},{"id":"dad82b92-c315-412e-82b3-d2bb0c6388f5","keyword":"小波变换","originalKeyword":"小波变换"},{"id":"ed1be99f-a123-4b84-b68c-2217e8d8feeb","keyword":"图像质量评价","originalKeyword":"图像质量评价"},{"id":"062fbd35-cfc7-4c51-940a-fe8807dd83fb","keyword":"多尺度","originalKeyword":"多尺度"},{"id":"90fbcf85-cc83-4bf7-92c1-f0eb91329961","keyword":"结构相似度","originalKeyword":"结构相似度"}],"language":"zh","publisherId":"yjyxs201502021","title":"基于小波变换的多尺度 SSIM 算法","volume":"","year":"2015"}],"totalpage":850,"totalrecord":8492}