Main Menu

See All 분석 및 시뮬레이션 소프트웨어 See All DAQ 소프트웨어 See All 드라이버 및 API See All 유틸리티 See All 진동 제어 See All 고정밀 및 보정 시스템 See All DAQ 시스템 See All S&V 핸드헬드 장치 See All 산업용 전자 제품 See All 전력 분석기 See All S&V 시그널 컨디셔너 See All 음향 트랜스듀서 See All 전류 및 전압 센서 See All 변위 센서 See All 힘 센서 See All 로드셀 See All 멀티 컴포넌트 센서 See All 압력 센서 See All 스트레인 센서 See All 스트레인 게이지 See All 온도 센서 See All 기울기 센서 See All 토크 센서 See All 진동 트랜스듀서 See All 진동 테스트 장비용 액세서리 See All 진동 컨트롤러 See All 측정 여기기 See All 모달 익사이터 See All 파워 앰프 See All LDS 셰이커 시스템 See All 테스트 솔루션 See All 액추에이터 See All 내연 엔진 See All 내구성 See All eDrive See All 생산 테스트 센서 See All 변속기 및 기어박스 See All 터보 충전기

용접된 부품의 피로 수명을 위한 새로운 분석 기능

Welding is often necessary in product design and production, but it can lead to susceptibility to fatigue cracking.  Predicting the fatigue life of welded components is therefore critical to ensuring product durability requirements are met. 


A number of analytical approaches have been used predict to weld durability.  These existing methods may struggle to accurately predict fatigue life in some cases.  This is particularly true in cases of complicated weldments and advanced materials that have become more prevalent in the current lightweighting environment.  In some weldments, cracks may initiate but grow very slowly – or not at all – depending on how the weld is designed.  Understanding the total life of the weld becomes very important to ensuring product durability.

The WholeLife fatigue method in nCode DesignLife addresses this analysis gap, bringing powerful new analysis capabilities for a more accurate prediction of weld fatigue life that results in improved product durability, reduced overdesign, and lower weight and cost.  WholeLife uses an integrated approach to model fatigue over the entire lifetime of the component – from very early stages of crack initiation to macroscopic crack growth and final fraction – to give a more accurate determination of weld life.  This combined approach of crack initiation and crack growth overcomes limitations and assumptions that are inherent in adopting either of these approaches separately.

SAE International’s Fatigue Design and Evaluation (FD&E) committee have evaluated and validated this ‘total-life’ approach as part of a multi-year research project involving a team of industry-wide durability experts, including HBM Prenscia. Results of this new total-life method detailing our involvement in this FD&E total life project were discussed at the M200 session of the 2019 WCX: World Congress Experience.

We also shared a presentation describing how this total-life method has been implemented in nCode, including descriptions of the required inputs for FE modeling, material properties, residual stresses, and applied loading. 

Ready to achieve success through failure prediction?