共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
Gelson Biscaia de Souza Alexandre Mikowski Carlos Maurício Lepienski Carlos Eugênio Foerster 《Journal of the European Ceramic Society》2010,30(9):1967-1969
Malzbender has suggested a model to determine hardness and elastic modulus as a function of the mechanical energies involved during tip penetration in instrumented indentations tests. However, the values obtained with these expressions are not consistent with the ones determined by the well-accepted Oliver and Pharr method. After revision, based on Malzbender's study itself, equations were rewritten and then, the obtained indentation hardness (H) for soda-lime glass was in agreement with the literature data. However, the reduced elastic modulus (Er) was still about 20% higher than the values in the literature. Developing Malzbender's proposal by the inclusions of additional mechanical energy assumptions, a new expression for Er is now suggested. Using the new expression, the hardness and reduced elastic modulus agreed very well with the Oliver and Pharr method. 相似文献
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.