Abstract
Based on the standpoint to be all study strength and life problem of materials on material, continuum-damage, micro-fracture and macro-fracture mechanics, Base on the standpoint to take for the crack size a also to be a damage variable like as the damage variable D, by means of a material damage simple model and the two directions combined coordinate system, studies the mechanisms and features in evolving process of material behaviors under cyclic loading. According to lots of calculation and analysis by material, continuum-damage, micro-fracture, macro-fracture mechanics, finds some alike and different rules on the variables, equations, curves and material constants in varied subjects, thereby quests their correlations each other. This design is mainly research and analysis of materials in the mechanical force under the stress - strain relations，The preparation of tension and compression, shear, bending and torsion static strength program, to complete component materials for conventional static strength calculation of the mandate。The Procedures based on C++ Builder 6.0 was developed, which can be used to analyse the strength and life of these components. This Procedures has some remarkable characters, for example, it is more stronger and faster calculating function, and it permits operator to choose stress calculation or stress intensity factor of life calculation flexibly. Further more, it can complete the work which can’t be done by manual.
Key words： Life; Shear; Bending ; Reverse ; Procedures ; Fatigue and Fracture.
目 錄
中文摘要 I
英文摘要 II
目錄 III
第一章 緒論 1
1.1 課題背景 1
1.2 國內外研究現狀 1
第二章 壓縮機連桿的強度壽命計算 5
2.1 往復式壓縮機的簡介 5
2.2 連桿材料在強度計算上的交叉與溝通 5
2.3 損傷演變行為計算方程的研究和分析 10
2.4 在壽命估算上交叉與溝通 14
2.5 20號鋼連桿的壽命表達式 20
第三章 表達式的編制 21
3.1 可視化開發工具-C++ Builder6.0介紹 21
3.2 人機交互的界面實現 21
3.3 編寫計算表達式的程序 25
3.4 事例驗證 25
第四章 總結與展望 26
4.1 總結 26
4.2 展望 26
參考文獻 27
致謝 28
