main9
Aerospace
- Feb 1, 2000
- 9
This covers the vibration of circuit card assemblies (printed wiring boards) located in electronic chassis. The boards are manufactuared using FR-4/Glass epoxy material.<br><br>I am looking for the following information.<br><br>1) material properties (modulus of elasticity, thermal conductivity, poisson's ratio) of FR-4 ?<br><br>2)any hand calculations that can be used to approximately calculate or quickly verify FEA analysis.<br><br>3)any technical paper/publications that provide the above information.<br><br>Need the information ASAP. Thank you.<br>