microcracks
Minuscule structural flaws
Microcracks are tiny fractures in a material, invisible to the naked eye but detectable under magnification or through specialized testing.
They form in metals, ceramics, concrete, and bone from stress, fatigue, or temperature changes.
Engineers monitor microcracks because they can propagate into larger failures: The bridge inspector found microcracks in the steel supports.
Scalp-skin boundary
- minusculeExtremely small in size
- imperceptibleCannot be sensed
- nanoscaleBillionth-meter dimension
- infinitesimalQuantity approaching zero
subtle · fine · micro · submicroscopic · ultrafine · microstructural · microfractures · micropores
Weariness from prolonged exertion
- stressPressure, mental or vocal
- strainExcessive stretching force
- thermalPertaining to warmth
- cyclingRiding on two wheels
loading · corrosion · shrinkage · curing · cooling · drying · aging · weathering
Split in hard material
- ruptureViolent tearing apart
- failureLack of success
- breakdownFailure or decomposition
- degradationDecline in condition
weakening · damage · deterioration · spalling · flaking · chipping · crumbling · disintegration
Made of distinct parts
- laminateBond thin layers together
- ceramicFired clay material
- polymerLarge repeated-unit molecule
- concreteSolid building mixture
metal · glass · coating · enamel · glaze · alloy · weld · solder
Formal assessment of condition
- imagingProducing visual representations
- microscopyTechnique using powerful lenses
- ultrasonicAbove audible frequency range
- acousticRelating to sound
emission · nondestructive · testing · radiography · tomography · dye · penetrant · magnification
Increase in size
- coalescenceUniting into one mass
- branchingSplitting into separate directions
- spreadingExtending over space
- extensionAdded part or duration
nucleation · initiation · arrest · bridging · linking · network · pattern · density
hairline
Scalp-skin boundary
- minusculeExtremely small in size
- imperceptibleCannot be sensed
- nanoscaleBillionth-meter dimension
infinitesimal · subtle · fine · micro · submicroscopic · ultrafine · microstructural · microfractures · micropores
fatigue
Weariness from prolonged exertion
cycling · loading · corrosion · shrinkage · curing · cooling · drying · aging · weathering · oxidation
fracture
Split in hard material
degradation · weakening · damage · deterioration · spalling · flaking · chipping · crumbling · disintegration · structural
composite
Made of distinct parts
concrete · metal · glass · coating · enamel · glaze · alloy · weld · solder · semiconductor
inspection
Formal assessment of condition
- imagingProducing visual representations
- microscopyTechnique using powerful lenses
- ultrasonicAbove audible frequency range
acoustic · emission · nondestructive · testing · radiography · tomography · dye · penetrant · magnification · analysis
growth
Increase in size
- coalescenceUniting into one mass
- branchingSplitting into separate directions
- spreadingExtending over space
extension · nucleation · initiation · arrest · bridging · linking · network · pattern · density · distribution
microcracksstructural integrity
Wholeness under load
soundness · wholeness · undamaged · intactness · continuity
microcracksfractures
Breaks in rigid material
structural collapse · fragmentation · ruptures · shatter · fissures
microcrackscontinuity
Uninterrupted progression or coherence
homogeneity · uniformity · cohesion · unbroken · seamless