Multi Axial Creep Fatigue Damage Accumulation in Vacuum Brazed Battery Pack Cooling Structures
Vacuum brazed aluminum cooling plates fail under coupled multi-axial creep-fatigue when pressure pulses interact with static cell swelling constraints.
LV 124-2 Standard
Meaning
Automotive testing specifications define environmental and mechanical qualification requirements for high-voltage electrical components in motor vehicles. Conformance with the LV 124-2 standard verifies that battery management systems and power electronics withstand mechanical shock and thermal stress without functional disruption. Jointly developed by German automotive manufacturers, the document outlines standardized profiles for sinusoidal vibration and thermal shock testing.
Application covers low and high-voltage automotive electronic assemblies, terminating at the boundary of electromagnetic compatibility testing covered by separate standards.
Test Profile
Severity levels match operational exposure experienced over vehicle service lifespans. Compliance with the LV 124-2 standard demands continuous electrical monitoring during thermal cycling from negative forty degrees to elevated operating temperatures. Component failure occurs if contact resistance surges or structural fasteners loosen during vibration testing.
Multi-axis shock testing exposes latent mechanical defects.
Quality Verification
Laboratory validation confirms component robustness before serial production approval. Applying the LV 124-2 standard establishes standardized pass criteria based on functional parameter retention and housing seal integrity.
Compliance Requirement
Tier-one suppliers must provide certified test documentation to satisfy OEM sourcing prerequisites. Passing all test modules in the LV 124-2 standard validates enclosure durability and connector contact reliability under real-world vehicle stresses. Formal certification secures procurement approval for series vehicle production.