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ArcMatter 3.0
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Structures · Intermediate · Real physics

Truss Analysis

Investigate forces in a three-member truss and distinguish tension from compression.

STATIC EQUILIBRIUM ANALYSIS
Calculated static equilibrium
SOLVER-DRIVEN STATIC EQUILIBRIUM3 members · 3 joints · pin A / roller B
Complete triangle truss with selectable compression and tension membersTRUSS ANALYSISTension and compressionP = 12.0 kN ↓AB 6.0AC 8.5BC 8.5ABCAᵧ 6.0 kNBᵧ 6.0 kNSpan 6.0 m · Height 3.0 mAC · Compression · -8.49 kNBlue: tension · Pink: compression · Tap a member
MEMBER INSPECTOR

Inspect calculated axial forces

Static model · no fabricated motion
Axial member force-8.49 kN
Axial action (force sign)Compression
Diagonal inclination45.0°
Selected member length4.24 m
Estimated axial stress σ-8.49 MPa
Estimated axial strain ε-4.243e-5
Member extension ΔL-0.1800 mm
Crown vertical shift-0.3446 mm
Equilibrium checkRₐ + Rᵦ − P = 0.000000 kNBlue: tension · pink: compression. Axial stress assumes each member has A =1000 mm² and E = 200 GPa. The crown displacement is a small-strain linear elastic compatibility estimate; its deformation is NOT drawn at true scale. Neither stresses nor deflection establish buckling capacity, yield, joint design or structural safety.
PHYSICS MODELPin-jointed linear elastic triangleSolver-linked · Visual exaggeration identified in lab · Educational approximation
Static system · change a parameter to recalculate
Left reaction6.00 kN
Right reaction6.00 kN
Bottom chord force6.00 kN