# 抗壓強度

## 應用

${\displaystyle \sigma ={\frac {F}{A}}}$

F為壓力，而A為於材料受壓力面的面積。然而，當材料受壓時，其截面積會因而增加。因此工程應力的定義為壓力除以材料的初始面積：

${\displaystyle \sigma _{e}={\frac {F}{A_{0}}}}$

${\displaystyle \epsilon _{e}={\frac {l-l_{0}}{l_{0}}}}$

${\displaystyle \sigma _{e}^{*}={\frac {F^{*}}{A_{0}}}}$

${\displaystyle \epsilon _{e}^{*}={\frac {l^{*}-l_{0}}{l_{0}}}}$

## 例子

 材料 Rs [MPa] 陶瓷 500 骨骼 150 混凝土 20-80 冰 (0°C) 3 保麗龍 ~1

## 參考

1. ^ Varzinskas, Visvadas; Jurgis Kazimieras Staniškis, Alis Lebedys, Edmundas Kibirkštis, Valdas Miliūnas. Life Cycle Assessment of Common Plastic Packaging for Reducing Environmental Impact and Material Consumption. Environmental Research, Engineering and Management. 2009, 50 (4): 57–65 [21 September 2012]. （原始内容存档于2016-03-04）.
2. ^ NIST, Large Scale Structure Testing Facility, [04-05-2010], （原始内容存档于2010-06-05）.
3. ^ Urbanek, T; Lee, Johnson. Column Compression Strength of Tubular Packaging Forms Made of Paper (PDF) 34,6. Journal of Testing and Evaluation: 31–40. [13 May 2014]. （原始内容存档 (PDF)于2021-03-01）.
4. ^ Ritter, m A; Oliva, 9, Design of Longitudinal Stress-Laminated Deck Superstructures, Timber Bridges: Design, Construction, Inspection, and Maintenance (PDF), US Dept of Agriculture, Forest Products Laboratory, 19902010 [13 May 2014], （原始内容存档 (PDF)于2021-03-05）
5. ^ Compressive Strength of Concrete & Concrete Cubes | What | How | CivilDigital |. 2016-07-07 [2016-09-20]. （原始内容存档于2017-09-26） （美国英语）.