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- The critical fracture criterion of a cylinder with V-notches on the inner surface under explosive loading is studied. 摘要以内刻V形槽战斗部圆柱壳体为研究对象,研究了其在内爆轰载荷下的临界断裂准则。
- To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation. 摘要为了准确地预测板料成形极限,将韧性断裂准则引入到有限元模拟中。
- In some cases, however, it can not tell us when fracture will occur in stamping process.In this paper, several fracture criteria are introduced and these characters, usag... 但在有些情况下,它并不能准确的告诉我们在冲压过程中何时产生断裂。
- The mechanics condition of ductile fracture of pressure vessel materials and their relations to the fracture criteria were investigated based on the micromechanics. 应用细观力学的观点分析了压力容器材料韧性断裂的力学条件,并考察了其与断裂参量的关系。
- This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria(DFC). 摘要对板料成形中的成形极限应力图、最大变薄率、成形极限图以及韧性断裂准则等预测成形极限的方法,进行了综述和分析。
- The forming limits in non-axisymmetric square-cup deep drawing of aluminum alloy LF21, LY21(M) and steel st17 are predicted by means of the ductile fracture criterion (DFC) advanced by the author. 利用作者提出的韧性断裂准则预测了铝合金板LF21;LY21(M)和钢板st17非轴对称的方盒件拉深成形极限;并与成形极限图的预测结果和实验结果进行比较.
- Finally, by using the two collinear crack model and a single crack model, a new fracture criterion for brittle materials under compression was developed based on the traditional fracture criterion. 当只有两个裂纹或一个裂纹存在时,给出了准确的应力强度因子解析解。最后依据共线双裂纹模型和单裂纹模型及传统的裂纹断裂准则,建立了脆性材料在压缩载荷作用下的断裂破毁准则。
- In this paper,the maximum circumferential strain fracture criterion is proposed with a comparison of the maximum circumferential stress criterion and the strain energy density theory. 根据线弹性断裂力学,推导出了复合型裂纹的最大拉应变断裂准则,并与最大拉应力理论、应变能密度因子理论作了比较、分析;
- A Modified Fracture Criterion for JIC 对JIC断裂准则的一种改进
- The damage and fracture criterions and the damage localization models at the crack tip are individually established, which can better realize the true process... 建立了这两个区域的损伤断裂准则和裂纹尖端的损伤局部化模型,可以更好地反映爆生气体作用下裂纹扩展的实际过程。
- ON J-INTEGRAL AS A FRACTURE CRITERION IN HETEROGENEOUS WELDED JOINT 关于非均质焊接接头中的J积分断裂判据
- A New Unified Tensile Fracture Criterion--Ellipse Criterion 新的统一拉伸断裂准则--椭圆准则
- Fracture Criterion for Ceramic Notched Elements under Compression 轴向压缩载荷下陶瓷切口件的断裂准则
- Fracture criterion of functionally gradient materials 梯度功能材料的断裂准则
- My own criterion of success is the ability to work joyfully. 我自己成功的标准是能够快乐地工作。
- Perhaps there is a fracture in the water pipe. 也许水管有裂缝了。
- The fracture of his left leg is very serious. 他的左腿骨折情况很严重。
- The fracture caused him intense pain. 骨折给他造成了剧烈的疼痛。
- Experimental and Theoretical Research on Ductile Fracture Criterion 韧性断裂准则的试验与理论研究
- Study on the fracture criterion of alloy steel in cold forging 合金钢冷锻破裂准则的研究