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University, Jingzhou 434023, China; 2. Structural Engineering and Disaster Prevention Research Institute, Yangtze University, Jingzhou 434023, China) Abstract: Detailed finite element analysis (FEA) model... is practical and can provide practical basis for engineering design. Key words: concrete filled steel tubular (CFST) column-steel beam joint with external diaphragm; finite element analysis (FEA......
球形压痕法评价材料屈服强度和应变硬化指数的有限元分析 崔航1,黄春玲1,陈静1,吴昌忠1,陈怀宁1 (1.中国科学院金属研究所,沈阳,110016) 摘要:采用量纲分析法,建立了直径1 mm球形压头的无量纲函数.通过此无量纲函数和有限元计算,可推算金属材料的屈服强度和应变硬化指数.通过模拟,得到了屈服应变从0.00769到0.04范围的材料常数的拟合函数,并利用此拟合函数得到了屈服强度和应变硬化指数.通过模拟验证,此方法提高了计算精度并扩大了材料的计算范围.所获得的屈服强度平均误差是1.6%,应变硬化指数的平均误差12.6%. 关键词:有限元分析(FEA); 球形压痕; 屈服强度; 应变硬化指数; 无量纲函数; [全文内容正在添加中] ......
process. Key words: wrinkle; superplastic forming (SPF); hot-bend assisted gas forming (HBAGF); three-dimensional finite element analysis (FEA) 1 Introduction The superplastic forming (SPF) technique has... drawing by LS-DYNA. LUO et al [6] and TANG et al [7] used a long rectangular die and commercial FEA codes established by correlation with SPF trials from an industrial SPF process. The codes were used......
laser bonding; MEMS packaging; FEA; mechanical pull tests; cross-sectional microscopy 1 Introduction Micro-Electro-Mechanical Systems (MEMS) are meso-to-submicron scale mechanical moving parts..., and finite element analysis (FEA) thermal models were constructed to understand the effect of laser processing parameters on the temperature distribution. Further, more processing parameters including laser......
材料参数对点面正碰撞的柔度关系影响研究葛藤,贾智宏,周克栋摘 要:采用2D轴对称有限元法(FEA)模拟计算了弹性,理想弹塑性和幂指数应变强化弹塑性钢球与刚性平面碰撞.分析了影响柔度关系的各种因素.弹塑性碰撞的FEA结果说明塑性变形是导致能量损失的主要原因.研究结果为多体系统动力学计算提供了有益的参考.关键词:正碰撞;恢复系数;有限元法;......
Trans. Nonferrous Met. Soc. China 23(2013) 1452-1458 Defect assessment of welded specimen considering weld induced residual stresses using SINTAP procedure and FEA M. JEYAKUMAR1, T. CHRISTOPHER2 1... thickness crack was analyzed using SINTAP procedure and FEA incorporating weld induced residual stresses. Weld induced longitudinal residual stress profile can be obtained through SINTAP procedure, FEA......
碳纤维复合材料圆筒受外压结构分析 乔仁海1,王嵘1,肖文刚1 (1.北京玻钢院复合材料有限公司,北京,102101) 摘要:本文对碳纤维复合材料圆筒受外压载荷的结构设计方法进行了研究.运用有限元法和公式法求解了临界压力,并进行了试验验证.结果表明,碳纤维复合材料圆筒受外压作用的主要失效型式为失稳破坏,有限元法和公式法的计算结果与试验结果一致. 关键词:复合材料; 外压; 有限元; composites; external pressure; FEA; [全文内容正在添加中] ......
memory; FEA; electrical property; thermal property; heating efficiency; [全文内容正在添加中] ......
stress; XRD; FEA; [全文内容正在添加中] ......
34 mm/s.该驱动器在小载荷,高精度精密定位等场合具有很好的实用化前景. 关键词:直线驱动器; 压电陶瓷; 有限元分析; linear actuator; piezoelectric ceramic; FEA; [全文内容正在添加中] ......