Failure, Fracture, & Damage

Failure, Fracture, & Damage

Prerequisites

• Equiv­a­lent knowl­edge to an in­tro­duc­to­ry class in LS-DY­NA^® is rec­om­mend­ed.

Syllabus

This course teach­es you how to mod­el frac­ture, dam­age, and fail­ure in LS-DY­NA. The dif­fer­ent method­olo­gies to mod­el fail­ure and frac­ture in LS-DY­NA will be pre­sent­ed and dis­cussed. All for­mu­la­tions in LS-DY­NA, in­clud­ing La­grangian, Euler­ian, SPH, XFEM, EFG, and DEM, will be dis­cussed. This course in­cludes sev­er­al ex­am­ples, de­signed to il­lus­trate and re­in­force the con­cepts pre­sent­ed.

Content

1. In­tro­duc­tion & his­tor­i­cal re­view
   1. Brit­tle fail­ure
   2. Duc­tile fail­ure
2. Fun­da­men­tal the­o­ret­i­cal con­cepts
   1. Fail­ure the­o­ries
   2. Dam­age mod­els
   3. Frac­ture me­chan­ics
3. El­e­ment ero­sion: ad­van­tages & short­com­ings
4. Cur­rent LS-DY­NA ca­pa­bil­i­ties to mod­el fail­ure and dam­age
5. Cur­rent LS-DY­NA ca­pa­bil­i­ties to mod­el frac­ture
6. Frac­ture & com­pu­ta­tion­al meth­ods
   1. La­grangian
   2. Euler­ian
   3. SPH
   4. SPG
   5. XFEM
   6. EFG
   7. DEM
7. Frac­ture ver­i­fi­ca­tion ex­am­ples
8. Post-pro­cess­ing frac­ture prob­lems
9. MAT_­ADD_­ERO­SION & the GISS­MO mod­el
10. Ma­te­r­i­al mod­els with fail­ure
    1. Isotrop­ic ma­te­ri­als
    2. Hy­per­e­las­tic ma­te­ri­als
    3. Com­pos­ite ma­te­ri­als
    4. Ge­ot­ech ma­te­ri­als
11. Mod­el­ing de­lam­i­na­tion and debond­ing in LS-DY­NA
    1. Co­he­sive el­e­ments
    2. Tied con­tact with fail­ure
12. Sum­ma­ry and con­clud­ing re­marks