Lifetime Prediction of Wall-Flow Type Diesel Particulate Filters Using Fatigue Characteristics

Paper #:
  • 930128

Published:
  • 1993-03-01
Citation:
Umehara, K. and Nakasuji, Y., "Lifetime Prediction of Wall-Flow Type Diesel Particulate Filters Using Fatigue Characteristics," SAE Technical Paper 930128, 1993, https://doi.org/10.4271/930128.
Pages:
10
Abstract:
Lifetimes of DPF under various thermal stress cycles were calculated based on the slow crack growth theory and expected lifetimes were investigated in relation to maximum temperature during regenerations. The fatigue characteristics of porous honeycomb structures follow the slow crack growth theory. Maximum thermal stress was calculated from temperature distributions of failed DPF. The ratio of 4-point bending strength to maximum thermal stress was used as a correction factor. The thermal stress was calculated from various temperature distributions and then modified with the correction factor. These results were compared with the fatigue characteristics obtained from 4-point bending fatigue tests.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2017-03-13
Training / Education
2017-12-18
Technical Paper / Journal Article
2010-10-25
Technical Paper / Journal Article
2010-10-25