Carbon Fiber Material was Added

StructureHelperCommon/Models/Forces/IDesignForcePair.cs

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+using StructureHelperCommon.Infrastructures.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Models.Forces
+{
+    public interface IDesignForcePair : IForceAction
+    {
+        LimitStates LimitState { get; set; }
+        IForceTuple LongForceTuple { get; set; }
+        IForceTuple FullForceTuple { get; set; }
+    }
+}