![](https://static.wixstatic.com/media/157719_8c0980cc0cd34f0ba9da68a5576a543e~mv2.jpg/v1/fill/w_1066,h_716,al_c,q_85,enc_avif,quality_auto/157719_8c0980cc0cd34f0ba9da68a5576a543e~mv2.jpg)
Metal cutting of Ti6Al4V alloy
-
Numerical modeling [in]
-
Material law: ​Johnson-Cook model
-
Material failure: bond-failure model
-
Numerical method: Smoothed Particle Galerkin​ (SPG)
-
![](https://static.wixstatic.com/media/157719_1e21fb455b8941cc9920028fa18afb84~mv2.png/v1/fill/w_241,h_148,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/157719_1e21fb455b8941cc9920028fa18afb84~mv2.png)
The shear band with regular pattern is accurately captured by numerical simulation. The convergence study shows improving agreement with experiment.
![](https://static.wixstatic.com/media/157719_38bc2f91864e4c8c9de04e1be1d48147~mv2.png/v1/crop/x_84,y_490,w_114,h_204/fill/w_159,h_286,al_c,lg_1,q_85,enc_avif,quality_auto/157719_38bc2f91864e4c8c9de04e1be1d48147~mv2.png)
![](https://static.wixstatic.com/media/157719_79044e4c18044a3bb4b389effbff0385~mv2.png/v1/fill/w_145,h_298,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/157719_79044e4c18044a3bb4b389effbff0385~mv2.png)
![](https://static.wixstatic.com/media/157719_28cdbe0cb5144967bd6f3ee8a8295127~mv2.png/v1/fill/w_394,h_298,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/157719_28cdbe0cb5144967bd6f3ee8a8295127~mv2.png)
The animation of numerical result below shows the detail of cutting process. This powerful numerical tool has been successfully applied to metal shearing and bushing analysis.
![](https://static.wixstatic.com/media/157719_411b357b67ec4f33a9beab339ded1c59~mv2.gif/v1/fill/w_344,h_298,al_c,usm_0.66_1.00_0.01,pstr/157719_411b357b67ec4f33a9beab339ded1c59~mv2.gif)
Sheet Metal Punching
-
Experiment data is available [Svanberg, 2019]
-
Numerical modeling
-
Material law: MAT_PIECEWISE_LINEAR_PLASTICITY
-
Material failure: bond-failure with maximum shear strain (IDAM=3, FS=2.2)
-
Numerical method: Smoothed Particle Galerkin​ (SPG)
-
-
Comparison: FEM with element erosion + GISSMO model
![punch01.png](https://static.wixstatic.com/media/157719_159fde0f01a0469fbddde409bc277fe2~mv2.png/v1/fill/w_223,h_150,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/punch01.png)
![punch02.png](https://static.wixstatic.com/media/157719_07972e077d9a4f13acc1ef1f8ed5b3d6~mv2.png/v1/fill/w_196,h_150,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/punch02.png)
1/8 model
EPS
![punch04.gif](https://static.wixstatic.com/media/157719_08bf6b898252443aa9a5a9986d5d8443~mv2.gif/v1/fill/w_181,h_150,al_c,usm_0.66_1.00_0.01,pstr/punch04_gif.gif)
![punch03.gif](https://static.wixstatic.com/media/157719_0db1c25b757d40ff911be5ab289b7d64~mv2.gif/v1/fill/w_179,h_150,al_c,usm_0.66_1.00_0.01,pstr/punch03_gif.gif)
Max Principle Strain
![punch05.png](https://static.wixstatic.com/media/157719_865b0390f9a14753b8de8135429a89c6~mv2.png/v1/fill/w_377,h_300,al_c,q_85,enc_avif,quality_auto/punch05.png)