Fatigue Evaluation and Validation
Durability Testing & Fatigue Evaluation
Component-Level Fatigue & Durability Testing Excellence
SDL offers one of India’s most advanced component-level fatigue and durability testing capabilities, backed by over three decades of deep domain experience. With a 24×6 operational laboratory, SDL ensures accelerated test turnarounds and high-volume evaluation for a wide spectrum of automotive, agricultural, off-highway, and rail components.
Our state-of-the-art servo-hydraulic test systems, combined with several specialised rigs and advanced simulation setups developed in-house, enable precise replication of real-world loading patterns, environmental influences, and usage variability. This allows us to validate durability with exceptional accuracy and engineering confidence.
SDL specialises in fatigue testing across the full range of variability—design, material, manufacturing deviations, and operational load diversity. Our methodologies integrate analytical assessment with controlled physical testing to:
- •Validate fatigue life
- •Identify critical failure modes
- •Support design optimisation and performance enhancement
- •Failure Analysis
From individual components to full vehicle assignments, SDL provides reliable, data-driven durability evaluations that help manufacturers build safer, stronger, longer-lasting products.
Vibration Isolator Testing & Rod End Testing
Vibration Isolator Testing

Performance and durability testing of different types of the Vibration Isolators which are meant to use in Transportation of Armament systems, Satellite systems, Camera Isolation, Engine isolation, Navigation equipment application etc.
Rod End Testing

Static and durability testing of ‘Rod ends’ at variable temperature ranges with dust/mud spraying.
Drop Impact Testing of Seat Riser Assembly & Air Suspension Testing
Drop Impact Testing of Seat Riser Assembly

Performance evaluation of Seat riser assembly application of impacts using pneumatic facility.
Air Suspension Testing

Simulation and Multiaxial Durability test on Rear Air suspension of Truck with random data file inputs in vertical, lateral and longitudinal direction.
Lower/Upper Control Arm, Suspension Bushing & Sine-on-Sine Durability on Damper
Lower Control Arm/Upper Control Arm & Suspension Bushing Characterization

Lower Control Arm/Upper control arm & suspension bushing characterization.
Sine-on-Sine Durability on Damper

Temperature controlled Sine-on-sine damper durability with mud spray.
Vehicle Restraining Devices, Wheel Rim Push Out & Suspension under Mud Environment
Vehicle Restraining Devices Validation
Wheel Rim Push Out Test
Suspension Performance under Mud Environment

Endurance and leakage testing of suspension during projection of mud/slurry water with controlled pressure and flow rate subjected to the combined vertical wheel and steering movement.
Suspension Performance under Vertical & Steering Movements and ARB Durability
Suspension Performance under Vertical & Steering Movements

Endurance testing of Strut upper attachments and the strut bearing of a Pseudo-Mac-Pherson axle, subjected to the combined vertical wheel travel and steering.
ARB Durability under Rolling, Steering Movement
Wheel Rim Impact Test & Steering Component Validation
Wheel Rim Impact Test
Steering Component Validation
Testing of Concrete Structures & Reinforcement Coupler Validation
Testing of Concrete Structures

Study of nature of deformation of Brick & RCC structure under different loading conditions.
Reinforcement Coupler / Groutech Coupler / TMT Bar Validation as per IS16172 – ISO/IEC17025 Accredited Facility
Railway/Metro Bogie Frame Validation, Tractor Transmission & Solar System Damper
Railway/Metro Bogie Frame Validation as per EN13746/UIC515/UIC615 – ISO/IEC17025 Accredited Facility

Railway/Metro Component Validation
- •Axle box
- •Air spring
- •Dampers
- •Draw bar
- •Centre pivot
- •Springs
- •Anti roll bar
Tractor Transmission Component Validation inside Mud

Solar System Damper Validation