I want one page summary about these tree tests1- Torsion test2-hardness testing3- charpy impact test

I want one page summary about these tree tests
1- Torsion test
2-hardness testing
3- charpy impact test
Torsion test:
T he t o r s i on e x p e r i m e n t i s d e s ig ned t o de t e r m in e t he m odu lus o f r i g i d i t y
i . e G o f m a t e r i a l . A s pe c im e n w i t h k no wn g eom e t r y c a n b e t w i s t e d an d
t he va lu es o f t w i s t c a n b e f o r t o r q ue s im u l t an e ou s l y app l i e d
no t ed . T o p e r f o r m t h i s t as k , a t o r s i o n t es t i n g machine can be used With the
sample secured.
The specimen is to be fixed at one end and twist can be applied at other end by application of
torque with known value.
The formula used to determine G is as...