Breakage of Shock-Absorbing Block Clips
Shock-absorbing blocks often rely on clips or fasteners to secure them in place on vehicle bumpers or machinery mounts. The breakage of these clips can lead to detachment, reduced impact absorption, and potential damage to surrounding components.
1. Causes of Clip Breakage
Mechanical Overload: Excessive force, impact, or compression beyond the design limit can snap the clip.
Material Fatigue: Repeated stress cycles over time weaken the clip material, making it prone to fracture.
Aging and Environmental Degradation: Exposure to UV light, heat, cold, moisture, or chemicals can embrittle plastic or metal clips.
Improper Installation: Misalignment or excessive bending during installation can induce stress points that lead to failure.
Inferior Material Quality: Low-quality plastics or metals may lack the necessary toughness for repeated operational loads.
2. Effects of Clip Breakage
Detachment of the Shock-Absorbing Block: The block may become loose, reducing its effectiveness in energy absorption.
Noise and Vibration: Loose blocks can rattle, vibrate, or produce squeaking during operation.
Accelerated Component Wear: Surrounding parts may experience higher stress and wear.
Safety Risks: Reduced shock absorption may compromise protection during collisions or operational impacts.
3. Corrective and Preventive Measures
Replacement of Broken Clips: Use clips that meet OEM specifications or high-quality aftermarket alternatives.
Inspect Adjacent Components: Check the shock-absorbing block and mounting area for additional damage.
Proper Installation Techniques: Align clips correctly and avoid overbending or over-tightening during assembly.
Material Upgrade: Opt for UV-resistant plastics, reinforced polymers, or corrosion-resistant metals for durability.
Regular Maintenance: Periodically inspect clips for cracks, wear, or deformation to prevent unexpected failure.
4. Conclusion
Clip breakage in shock-absorbing blocks compromises mounting stability and reduces energy absorption efficiency. Careful material selection, proper installation, and regular inspection are essential to maintain functionality, minimize noise, and ensure safety.
References
Gent, A. N. Engineering with Rubber: How to Design Rubber Components. Hanser Publishers, 2012.
ASTM D2000 – Standard Classification System for Rubber Products in Automotive and Industrial Applications.
Lake, G. J. “Fatigue and Fracture of Elastomers.” Rubber Chemistry and Technology, 2000.
SAE J227 – Automotive Bumper Energy Absorber Performance Standards.
ISO 2230 – Rubber Products—Guidelines for Storage and Maintenance.
