In the traditional standard of internal friction measurement the torsion pendulum and vibration reed were preferentially recommended where the issue of strain amplitude dependence of internal friction was not concerned. To more precisely measure the internal friction and modulus at various strain amplitude. in this paper the strain amplitude dependence of internal friction and modulus... https://countryscenesaddleryandpetsuppliers.shop/product-category/painted-headstall-and-breast-collar-sets/