Login Sign Up

SAE AIR1387 Rev D

Current Revision

Designing with Elastomers for use at Low Temperatures, Near or Below Glass Transition

$106.00

$106.00

$190.80


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


Document Preview Not Available...

To ensure success in design of elastomeric parts for use at low temperature, the design engineer must understand the peculiar properties of rubber materials at these temperatures. There are no static applications of rubber. The Gaussian theory of rubber elasticity demonstrates that the elastic characteristic of rubber is due to approximately 15% internal energy and the balance, 85%, is entropy change. In other words, when an elastomer is deformed, the elastomer chain network is forced to rearrange its configuration thereby storing energy through entropy change. Thermodynamically, this means that rubber elasticity is time and temperature dependent (Reference 25). The purpose of this report is to provide guidance on low temperature properties of rubber with the terminology, test methods, and mathematical models applicable to rubber, and to present some practical experience. In this way, it is hoped that mistakes can be avoided, particularly in selection of rubber materials, enabling the design engineer to weigh low-temperature material properties together with the many other factors involved in the design process.

SDO SAE: SAE International
Document Number AIR1387
Publication Date Jan. 15, 2016
Language en - English
Page Count 16
Revision Level D
Supercedes
Committee
Publish Date Document Id Type View
Jan. 15, 2016 AIR1387D Revision
Dec. 30, 2003 AIR1387C Revision
March 1, 1995 AIR1387B Revision
Dec. 1, 1981 AIR1387A Revision
March 1, 1976 AIR1387 Revision