文献类型：专利

英文题名：Reverse finite element method for determining friction coefficient of small jumper bar tester, involves considering friction coefficient set during simulation and experiment are same so as to perform fracture toughness simulation

作者：GUAN K;XU L;GUO L;HUANG R;FU M;ZHOU T

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN106777544-A

申请日：2016-11-25

公开日：2017-05-31

语种：英文

收录：DERWENT

摘要：NOVELTY - The method involves determining (S11) change rule of load-displacement curve of small punch, when the friction coefficient is changed. The contact pressure during the small punch test process is obtained (S12). A finite element model is established, and the value of the friction coefficient is repeatedly adjusted to get different simulation curves. Simulation curve and test curve are determined to be closest, when the both curves met objective function. The friction coefficient set during the simulation and experiment are considered same to perform (S2) fracture toughness simulation. USE - Reverse finite element method for determining friction coefficient of small jumper bar tester. ADVANTAGE - The finite element process is used so as to obtain more reliable fracture toughness, tensile and creep performance. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating the reverse finite element process for determining friction coefficient of small jumper bar tester. (Drawing includes non-English language text) Step for performing fracture toughness simulation (S2) Step for determining change rule of load-displacement curve of small punch (S11) Step for obtaining contact pressure during small punch test process (S12) Step for designing small jumper bar tester friction coefficient measuring system (S13) Step for measuring small jumper bar tester friction coefficient (S14)