Machinery, Equipment and Products

D&A offers expertise in the design and analysis of machines, mechanisms, devices, and mechanical systems. We have investigated accidents and failures involving a wide variety of machinery, equipment, and consumer products. Our capabilities in this area include:

Macroscopic and microscopic inspection of failed or suspect components. Non-destructive inspections by magnetic particle, dye penetrant, and x-ray. Fracture surface examination and analysis. Metallurgical analysis including chemical analysis, hardness testing, and optical and scanning electron microscopy (SEM). Experimental and analytical stress analysis including FEA. Fatigue and fracture mechanics analysis. Material, component, and system testing. Maintenance history and upkeep analysis. Codes and standards compliance evaluations. Machine guarding - design and analysis. Tolerance, clearance, and fit analysis. Motion analysis and animation. Design optimization using computer modeling.

Statistical analysis of operation, warranty, repair, and accident data to determine probability of failure, failure/accident rates, to quantify risk, and to rank products in relation to peers with regard to performance and/or safety.

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Examples of the products and machinery analyzed by and/or designed by D&A