Some parts of the full-width sanitary napkin machine, such as rails and chains, will slowly fail after years of wear and tear; other parts, such as bolts, shafts and machine frames, should not fail. Users need to understand the common failures of full-width sanitary napkin machine components and then know what steps must be taken to prevent them from occurring.

Different analysts will use different systems, but the most practical way for actual plant personnel to classify failures is by overload, fatigue, corrosion affecting fatigue, corrosion and wear.

1. Overload: Applying a single load can cause a part to deform or fracture when a load is applied.
2. Fatigue: relatively long fluctuating loads can lead to such failures and usually leave clues.
3. Corrosion affects fatigue: Corrosion can greatly reduce the fatigue strength of most metals, eventually failing under relatively light loads.
4. Corrosion: Failure is the result of corrosive electrical or biological action, leading to material loss.
5. Wear: Multiple mechanisms lead to material loss due to full-width sanitary napkin machine removal.

Overload failure occurs immediately when a load is applied. The two common forms of overload failure, ductile and brittle, are very different in appearance. The most important point when analyzing the failure of a fractured component is that the crack always grows perpendicular to the plane of maximum stress. However, both the nature of the material and the type of failure can affect the appearance of the failed surface. Compressive overload on a ductile material such as a mild steel nail will cause the nail to bend. However, if the same type of overload is applied to a more brittle material, such as diamond steel or certain types of cast iron, it will be knocked to pieces.

In addition, failure of jagged or branching cracks, such as stress corrosion cracking, must also be carefully analyzed. Stress corrosion cracking is proximate to hydrogen embrittlement caused by chemical interactions of metals and can lead to catastrophic failure with little or no warning. Branching cracks are noteworthy; they are usually an indication of severe material application.