The Family Court has very wide powers in deciding a fair outcome and it will take into account all the assets available to the parties. A family trust may be taken into account by the court if the court believes it has been a financial resource available to you, for example if the trust provides a regular income to you.
Alternatively, the court could think your trust is a “nuptial settlement”. This is a highly fact specific question and the court will need to look into when and why the trust was established, and the existence and extent of any connection between the trust and your marriage. If a judge decides a trust is a nuptial settlement, the judge has the power to vary or change the trust as part of an overall financial settlement.