Survivability of Affordable Aircraft Composite Structures. Volume 2: High Strain Rate Characterization of Affordable Woven Carbon/Epoxy Composites

2003 ◽  
Author(s):  
Mahesh V. Hosur ◽  
Shaik Jeelani ◽  
Uday K. Vaidya ◽  
Sylvanus Nwosu
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Composite Structures ◽  
High Strain ◽  
Epoxy Composites

High Strain Rate Compression Characterization of Affordable Woven Carbon/Epoxy Composites under Off-Axis Loading

2003 ◽  
Vol 11 (7) ◽  
pp. 527-539 ◽  
Author(s):  
M.V. Hosur ◽  
J. Alexander ◽  
U.K. Vaidya ◽  
S. Jeelani ◽  
A. Mayer
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Epoxy Composites ◽  
Strain Rate Compression

High strain rate compression testing of K-49/3501-6 Kevlar/epoxy composites

1997 ◽  
Author(s):  
Eric Preissner ◽  
Eyassu Woldesenbet ◽  
Jack Vinson ◽  
Eric Preissner ◽  
Eyassu Woldesenbet ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Compression Testing ◽  
Epoxy Composites ◽  
Strain Rate Compression

High strain rate compressive characterization of aluminum alloy/fly ash cenosphere composites

JOM ◽  
2011 ◽  
Vol 63 (2) ◽  
pp. 53-56 ◽  
Author(s):  
Dung D. Luong ◽  
Nikhil Gupta ◽  
Atef Daoud ◽  
Pradeep K. Rohatgi
Keyword(s):  
Aluminum Alloy ◽  
Fly Ash ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Fly Ash Cenosphere

High Strain Rate Response of S2-Glass/Epoxy Composites with Polycarbonate Facing

2001 ◽  
Vol 9 (2) ◽  
pp. 67-80 ◽  
Author(s):  
U.K. Vaidya ◽  
M. Kulkarni ◽  
M.V. Hosur ◽  
Arnold Mayer ◽  
Piyush Dutta
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Epoxy Composites

Medium to High Strain-Rate Characterization of Lead Free Solder Alloys Through Metal Cutting Experiments

2019 ◽  
Author(s):  
Yuvraj Singh ◽  
Anirudh Udupa ◽  
Srinivasan Chandrasekar ◽  
Ganesh Subbarayan
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Metal Cutting ◽  
High Strain ◽  
Lead Free ◽  
Strain Rates ◽  
Lead Free Solder ◽  
Orthogonal Metal Cutting ◽  
Free Solder

Abstract Studies on medium to high strain-rate characterization (≥ 0.1s−1) of lead-free solder are relatively few, primarily due to the lack of available methods for testing. Prior work in literature uses Split Hopkinson Bar (SPHB) experiments for high strain-rate characterization (≥ 300s−1) [1,2], while a modified micro-scale tester is used for medium strain-rate characterization (0.005s−1 to 300s−1) [3] and an impact hammer test setup for testing in a strain-rate regime from 1s−1 to 100s−1 [4]. However, there is still limited data in strain-rate regimes of relevance, specifically for drop shock applications. In this paper, we present orthogonal metal cutting as a novel method to characterize lead-free solder alloys. Experiments are carried out using a wedgelike tool that cuts through a work piece at a fixed depth and rake angle while maintaining a constant cutting velocity. These experiments are conducted at room temperature on Sn1.0Ag0.5Cu bulk test specimens with strain-rates varying from 0.32 to 48s−1. The range of strain-rates is only limited by the ball screw driven slide allowing higher strain-rates if needed. The strains and strain-rates are captured through Particle Image Velocimetry (PIV) using sequential images taken from a high-speed camera just ahead of the cutting tool. The PIV enables non-contact recording of high strain-rate deformations, while the dynamometer on the cutting head allows one to capture the forces exerted during the cutting process. Results for the stress-strain response obtained through the experiments are compared to prior work for validation. Orthogonal metal cutting is shown to be a potentially attractive method for characterization of solder at higher strain-rates.

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